Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2011 Lexus LX 570FACTORY OEM SERVICE PROCEDURE
On-Vehicle Inspection
- INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY
- Connect the Techstream to the DLC3.
- Start the engine and turn the Techstream on.
- Warm up the engine.
- Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Linear (Bank 1) or Control the VVT Linear (Bank 2) or Control the VVT System (Bank 1) or Control the VVT System (Bank 2) or Control the VVT Exhaust Linear (Bank 1) or Control the VVT Exhaust Linear (Bank 2).
- Check the engine speed while operating the Oil Control Valve (OCV) using the Techstream.
OK
Tester Operation Specified Condition OCV OFF Normal engine speed OCV ON Soon after OCV switched from OFF to ON, engine idles roughly or stalls If the result is not as specified, check the oil control valve, wirings and camshaft timing gear.
HINT:
- Control the VVT Linear (Bank 1): Command to activate exhaust and intake side oil control valves of bank 1 (Control range: Between -128 to 127%).
- Control the VVT Linear (Bank 2): Command to activate exhaust and intake side oil control valves of bank 2 (Control range: Between -128 to 127%).
- Control VVT System (Bank 1): Command to activate oil control valve of bank 1 (Control range: ON/OFF).
- Control VVT System (Bank 2): Command to activate oil control valve of bank 2 (Control range: ON/OFF).
- Control the VVT Exhaust Linear (Bank 1): Command to activate exhaust side oil control valve of bank 1 (Control range: Between -128 to 127%).
- Control the VVT Exhaust Linear (Bank 2): Command to activate exhaust side oil control valve of bank 2 (Control range: Between -128 to 127%).
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.